Cheapest return DCA–SJU flights, May

AirHint found the following cheapest return flights from Washington (DCA) to San Juan (SJU) in May 2026 (see full year).

Return flights

31 May - 04 Jun Delta
11 May - 20 May jetBlue direct
05 May - 09 May Southwest Airlines
07 May - 14 May American Airlines
10 May - 13 May Delta
12 May - 16 May Southwest Airlines
17 May - 22 May United
16 May - 20 May United
17 May - 24 May United
17 May - 20 May United
11 May - 14 May United
31 May - 06 Jun United
18 May - 02 Jun United
24 May - 02 Jun United
28 May - 04 Jun Delta
28 May - 01 Jun jetBlue
29 May - 04 Jun Southwest Airlines
20 May - 01 Jun Southwest Airlines
30 May - 08 Jun Southwest Airlines
23 May - 05 Jun Southwest Airlines

Also check the deals for one-way flights from Washington to San Juan in May.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.